Electric energy meter with convenient maintenance

By incorporating a transmission structure with a limiting groove and a cover plate within the electricity meter body, the problem of cumbersome battery replacement operations in electricity meters is solved, enabling rapid battery replacement and convenient maintenance.

CN224456862UActive Publication Date: 2026-07-03HANGZHOU HUALONG ELECTRONIC TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANGZHOU HUALONG ELECTRONIC TECH CO LTD
Filing Date
2025-06-30
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Replacing the battery in existing electricity meters is cumbersome, requiring multiple steps, which increases the difficulty and time cost, and makes it impossible to quickly and conveniently replace the battery.

Method used

An energy meter designed for easy maintenance is described. By setting a limiting groove and a cover plate inside the energy meter body, and utilizing the cooperation of the limiting component and the transmission component, the cover plate automatically lifts one corner of the battery when it slides, simplifying the battery removal process.

Benefits of technology

It enables quick battery replacement, simplifies operation steps, and improves the convenience and efficiency of maintenance.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224456862U_ABST
    Figure CN224456862U_ABST
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Abstract

The utility model provides a kind of electric energy meter of convenient maintenance belongs to electric energy meter technical field, including electric energy meter body, battery groove is also set up two limit slots symmetrically in electric energy meter body;Cover is limitedly slidably arranged between two limit slots, cover is slidably blocked battery groove;The top plate is slidably ejected in battery groove, sliding block is limitedly slidably arranged in limit slot, and sliding block is driven cooperation with top plate by transmission part;The outer surface of cover is fixedly provided with limit block, limit block is limitedly slidably arranged in limit slot, and also contact type transmission cooperation with sliding block;Electric energy meter body is provided with the limit piece acting on cover. During the process of pulling cover, cover will contact with sliding block and drive it to slide, so that top plate is automatically lifted upwards under the cooperation of transmission part, to lift a corner of battery, it is convenient to quickly disassemble battery, easy to operate, to improve the convenience when maintaining, with better practical effect.
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Description

Technical Field

[0001] This utility model belongs to the field of electricity meter technology, specifically relating to an electricity meter that is easy to maintain. Background Technology

[0002] An electricity meter, also known as a kilowatt-hour meter, is an instrument used to measure electrical energy. It measures various electrical quantities and is widely used in households, businesses, and industries to record and monitor electricity usage for billing and energy management. Battery testing is crucial for routine maintenance of electricity meters. However, removing the battery in existing meters often requires multiple steps, making it inconvenient and hindering quick battery replacement. Therefore, there is an urgent need for an electricity meter that allows for convenient maintenance.

[0003] A patent with publication number CN221765563U discloses a replaceable power meter, which includes a meter body, a rotating plate, a first magnetic block, a second magnetic block, a limiting plate, a limiting groove, a rotating plate, and a lifting spring. When the battery needs to be removed, the rotating plate is rotated to disengage the first and second magnetic blocks. Then, the limiting plate is pulled to slide into the limiting groove. Immediately afterwards, the rotating plate, under the action of the lifting spring, applies force to the battery, causing the battery to be pushed out by one corner for easy removal.

[0004] However, the above solution requires not only rotating the rotating plate but also pulling the limiting plate before lifting one corner of the battery. The numerous steps increase the complexity of the operation, undoubtedly increasing the difficulty and time cost of operation. It is not convenient to quickly remove and replace the battery, and the practical effect is generally poor. Utility Model Content

[0005] To address the problems existing in the background technology, this utility model provides an energy meter that is easy to maintain.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An energy meter for easy maintenance includes an energy meter body. The energy meter body has a battery slot and two symmetrically arranged limiting slots. A cover plate is slidably installed between the two limiting slots, and the cover plate slidably seals the battery slot. A top plate is slidably pushed out from within the battery slot, and a sliding block is slidably installed within the limiting slot, the sliding block engaging with the top plate via a transmission component. A limiting block is fixedly installed on the outer surface of the cover plate, the limiting block both slidably installed within the limiting slot and engaging with the sliding block in a contact transmission manner. A limiting component acting on the cover plate is provided within the energy meter body.

[0008] Furthermore, the limiting component includes a locking block. An installation groove is provided on the energy meter body. The locking block is both slidably positioned and fixedly installed in the installation groove. One end of the locking block is fixedly connected to the first spring, and the other end of the locking block is a smooth arc surface. Two slots are provided on the cover plate, and the smooth arc surface end of the locking block is engaged with the slot in a transmission engagement.

[0009] Furthermore, a sliding groove is formed on the main body of the electricity meter, and a slider is fixedly installed on the cover plate, with the slider and the sliding groove engaging in a limiting sliding fit.

[0010] Furthermore, the transmission component includes a rotating shaft, and a placement groove is formed inside the energy meter body, with the placement groove and the limiting groove corresponding to each other and communicating one-to-one; a fixed rod is fixedly installed in the placement groove, and a sliding block is slidably sleeved on the fixed rod. A second spring is sleeved on the outer surface of the fixed rod, with one end of the second spring fixedly connected to the inner wall of the placement groove and the other end fixedly connected to the sliding block; a connecting seat is slidably installed in the placement groove, and the connecting seat is fixedly connected to the top plate; a connecting rod is provided between the connecting seat and the sliding block, with one end of the connecting rod hinged to the sliding block through a rotating shaft, and the other end of the connecting rod hinged to the connecting seat through a rotating shaft.

[0011] This application has the following beneficial effects:

[0012] When maintenance personnel pull the cover plate, the cover plate will contact the sliding block and drive it to slide, so that the top plate will automatically lift up with the help of the transmission components, thereby lifting one corner of the battery, which facilitates quick battery removal. The operation is simple, thereby improving the convenience of maintenance and having a better practical effect. Attached Figure Description

[0013] The above and other objects, features, and advantages of the present invention will become readily understood by reading the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the transmission component structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the limiting component structure of this utility model;

[0017] Figure 4 This is a partial cross-sectional view of the present invention.

[0018] Explanation of reference numerals in the attached figures:

[0019] 1. Electricity meter body; 2. Battery compartment; 3. Cover plate; 4. Slot; 5. First spring; 6. Locking block; 7. Sliding block; 8. Fixing rod; 9. Second spring; 10. Connecting rod; 11. Connecting seat; 12. Rotating shaft; 13. Top plate; 14. Sliding block; 15. Slide groove; 16. Limiting groove; 17. Placement groove; 18. Limiting block. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0021] like Figures 1-4 As shown, the technical solution adopted by this utility model is as follows: an energy meter with convenient maintenance includes an energy meter body 1. The energy meter body 1 has a battery slot 2 for placing a battery and two limiting slots 16. The two limiting slots 16 are symmetrically arranged. The battery slot 2 is equipped with positive and negative metal welding pieces (not shown in the figure).

[0022] A cover plate 3 is slidably installed between the two limiting grooves 16, and the cover plate 3 slides to block the battery groove 2. The energy meter body 1 is provided with a limiting component that acts on the cover plate 3.

[0023] The limiting component includes a locking block 6. An installation groove (not marked in the figure) is opened on the main body 1 of the electricity meter. The locking block 6 is slidably set in the installation groove, and the first spring 5 is fixedly set in the groove. One end of the locking block 6 is fixedly connected to the first spring 5, and the other end of the locking block 6 is set with a smooth arc surface. Two slots 4 are opened on the cover plate 3. The smooth arc surface end of the locking block 6 is engaged with the slot 4 in a transmission engagement.

[0024] Furthermore, a groove 15 is provided on the main body 1 of the electricity meter, and a slider 14 is fixedly provided on the cover plate 3. The slider 14 and the groove 15 are in a limiting sliding cooperation, which not only improves the stability of the cover plate 3 when sliding, but also presses the battery to improve the stability of the battery after installation.

[0025] A top plate 13 is slidably ejected from the battery compartment 2. A sliding block 7 is slidably installed in each limiting groove 16, and the sliding block 7 is driven by the top plate 13 through a transmission component. Limiting blocks 18 are fixedly installed on both sides of the cover plate 3. The limiting blocks 18 correspond one-to-one with the limiting grooves 16 and one-to-one with the sliding blocks 7. Each limiting block 18 is both slidably installed in the corresponding limiting groove 16 and in contact with the corresponding sliding block 7.

[0026] The transmission component includes a rotating shaft 12. A placement groove 17 is opened inside the energy meter body 1. The placement groove 17 and the limiting groove 16 are connected in a one-to-one correspondence. A fixing rod 8 is fixedly installed inside the placement groove 17. A sliding block 7 is slidably sleeved on the fixing rod 8. A second spring 9 is sleeved on the outer surface of the fixing rod 8. One end of the second spring 9 is fixedly connected to the inner wall of the placement groove 17, and the other end is fixedly connected to the sliding block 7.

[0027] In addition, a connecting seat 11 is provided in the placement groove 17 for limiting sliding, and the connecting seat 11 is fixedly connected to the top plate 13; a connecting rod 10 is provided between the connecting seat 11 and the sliding block 7, one end of the connecting rod 10 is hinged to the sliding block 7 through the rotating shaft 12, and the other end of the connecting rod 10 is hinged to the connecting seat 11 through the rotating shaft 12.

[0028] Working principle: When the battery needs to be replaced, slide the cover plate 3 to the outside of the energy meter body 1. With the help of the sliding cooperation between the locking block 6 and the slot 4, the locking block 6 is disengaged from the slot 4 and the first spring 5 is compressed, thereby releasing the restriction on the cover plate 3 and exposing the battery in the battery slot 2.

[0029] Reference Figure 2 When the cover plate 3 slides, it will cause the limiting block 18 to slide synchronously in the limiting groove 16. During the sliding process, the limiting block 18 will come into contact with the sliding block 7. After the two come into contact, the limiting block 18 will push the sliding block 7 to slide in the direction of compressing the second spring 9, so that the connecting seat 11 rises under the pull of the connecting rod 10, thereby causing the top plate 13 to slide out and lift up one corner of the battery.

[0030] At this point, the locking block 6 is aligned with another locking slot 4, and thus, under the push of the first spring 5, it locks into the locking slot 4, thereby limiting the position of the cover plate 3. Subsequently, the maintenance personnel can simply remove the battery and replace it.

[0031] When installing the battery, place the battery in the battery slot 2, with one end of the battery on the top plate 13. Press down on the end of the battery on the top plate 13, using the battery to push the top plate 13 downward, causing it to reset. The reset of the top plate 13 will pull the sliding block 7 to slide within the limiting groove 16, thereby pushing the cover plate 3 through the limiting block 18, causing the cover plate 3 to slide a short distance into the meter body 1. At the same time, the locking block 6 will slide out from the locking groove 4 and compress the first spring 5 downward.

[0032] After the battery is installed into the battery slot 2, the battery and the positive and negative metal welding plates of the battery are in contact. Then, the cover plate 3 is pushed to reset. After the cover plate 3 is reset, the locking block 6 will be opposite to the initial locking slot 4. With the help of the first spring 5, the locking block 6 is pushed to re-lock into the locking slot 4 and fix the cover plate 3, thereby completing the battery replacement.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A self-maintaining electric energy meter, characterized by, The device includes an electricity meter body (1), which has a battery slot (2) and two symmetrically arranged limiting slots (16) inside. A cover plate (3) is slidably arranged between the two limiting slots (16) to limit the battery slot (2). A top plate (13) is slidably pushed out inside the battery slot (2). A sliding block (7) is slidably arranged inside the limiting slot (16) to limit the sliding of the sliding block (7). The sliding block (7) is driven and cooperates with the top plate (13) through a transmission component. A limiting block (18) is fixedly arranged on the outer surface of the cover plate (3). The limiting block (18) is slidably arranged inside the limiting slot (16) and is in contact with the sliding block (7) for transmission. A limiting component acting on the cover plate (3) is provided inside the electricity meter body (1).

2. A self-maintained electric energy meter according to claim 1, characterized in that, The limiting component includes a locking block (6). An installation groove is provided on the main body (1) of the electricity meter. The locking block (6) is slidably set in the installation groove, and the first spring (5) is fixedly set in the groove. One end of the locking block (6) is fixedly connected to the first spring (5), and the other end of the locking block (6) is set with a smooth arc surface. Two slots (4) are provided on the cover plate (3). The smooth arc surface end of the locking block (6) is engaged with the slot (4) in a transmission engagement.

3. A self-maintained electric energy meter according to claim 1, characterized in that, The main body (1) of the electricity meter has a sliding groove (15), and a slider (14) is fixedly installed on the cover plate (3). The slider (14) and the sliding groove (15) are in a limited sliding cooperation.

4. The easy maintenance electric energy meter as claimed in claim 1, wherein, The transmission component includes a rotating shaft (12), and a placement groove (17) is opened in the body (1) of the energy meter. The placement groove (17) and the limiting groove (16) are connected in a one-to-one correspondence. A fixing rod (8) is fixedly installed in the placement groove (17), and a sliding block (7) is slidably sleeved on the fixing rod (8). A second spring (9) is sleeved on the outer surface of the fixing rod (8). One end of the second spring (9) is fixedly connected to the inner wall of the placement groove (17), and the other end is fixedly connected to the sliding block (7). A connecting seat (11) is slidably installed in the placement groove (17), and the connecting seat (11) is fixedly connected to the top plate (13). A connecting rod (10) is provided between the connecting seat (11) and the sliding block (7). One end of the connecting rod (10) is hinged to the sliding block (7) through a rotating shaft (12), and the other end of the connecting rod (10) is hinged to the connecting seat (11) through a rotating shaft (12).